
problem
Lunar leaper
Gravity on the Moon is about 1/6th that on the Earth. A
pole-vaulter 2 metres tall can clear a 5 metres pole on the Earth.
How high a pole could he clear on the Moon?


article
High jumping
How high can a high jumper jump? How can a high jumper jump higher without jumping higher? Read on...

problem
Go spaceship go
Show that even a very powerful spaceship would eventually run out
of overtaking power


problem
Escape from planet earth
How fast would you have to throw a ball upwards so that it would
never land?


problem
The ultra particle
Explore the energy of this incredibly energetic particle which struck Earth on October 15th 1991
